Startseite Energiemanagement AC/DC- und DC/DC-Wandler (integrierter FET)
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AC/DC- und DC/DC-Wandler (integrierter FET)

LMQ61460-Q1

AKTIV

Synchroner, leiser Abwärtswandler mit integrierter Bypass-Kondensatoren für Automobilanwendungen, 3

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Datenblatt

LMQ61460-Q1

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Rating Automotive Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 6 Vin (min) (V) 3 Vin (max) (V) 36 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Enable, Forced PWM, Frequency synchronization, Light Load Efficiency, Low Noise, Over Current Protection, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, Wettable flanks package Control mode current mode Vout (min) (V) 1 Vout (max) (V) 34 Iq (typ) (A) 0.000007
Rating Automotive Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 6 Vin (min) (V) 3 Vin (max) (V) 36 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Enable, Forced PWM, Frequency synchronization, Light Load Efficiency, Low Noise, Over Current Protection, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, Wettable flanks package Control mode current mode Vout (min) (V) 1 Vout (max) (V) 34 Iq (typ) (A) 0.000007
VQFN-HR (RJR) 14 14 mm² 4 x 3.5
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C to +150°C, TJ
  • Functional Safety-Capable
  • Optimized for ultra-low EMI requirements
    • Meets CISPR25 class 5 standard
    • Hotrod™ package minimizes switch node ringing
    • Internal bypass capacitors reduce EMI
    • Parallel input path minimizes parasitic inductance
    • Spread spectrum reduces peak emissions
    • Adjustable switch node rise time
  • Designed for rugged automotive applications
    • Supports 42-V load dump
    • 0.4-V dropout with 4-A load (typical)
  • High efficiency power conversion at all loads
    • 7-µA no load current at 13.5 VIN, 3.3 VOUT
    • 90% PFM efficiency at 1-mA, 13.5 VIN, 5 VOUT
  • External bias option for improved efficiency
  • Pin compatible with:
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C to +150°C, TJ
  • Functional Safety-Capable
  • Optimized for ultra-low EMI requirements
    • Meets CISPR25 class 5 standard
    • Hotrod™ package minimizes switch node ringing
    • Internal bypass capacitors reduce EMI
    • Parallel input path minimizes parasitic inductance
    • Spread spectrum reduces peak emissions
    • Adjustable switch node rise time
  • Designed for rugged automotive applications
    • Supports 42-V load dump
    • 0.4-V dropout with 4-A load (typical)
  • High efficiency power conversion at all loads
    • 7-µA no load current at 13.5 VIN, 3.3 VOUT
    • 90% PFM efficiency at 1-mA, 13.5 VIN, 5 VOUT
  • External bias option for improved efficiency
  • Pin compatible with:

The LMQ61460-Q1 is a high-performance, DC-DC synchronous buck converter with integrated bypass capacitors. With integrated high-side and low-side MOSFETs, up to 6 A of output current is delivered over a wide input range of 3.0 V to 36 V; 42-V tolerance supports load dump for durations of 400 ms. The device implements soft recovery from dropout eliminating overshoot on the output.

The device is specifically designed for minimal EMI. The device incorporates pseudo-random spread spectrum, integrated bypass capacitors, adjustable SW node rise time, low-EMI VQFN-HR package featuring low switch node ringing, and optimized pinout for ease of use. The switching frequency can be synchronized between 200 kHz and 2.2 MHz to avoid noise sensitive frequency bands. In addition the frequency can be selected for improved efficiency at low operating frequency or smaller solution size at high operating frequency.

Auto-mode enables frequency foldback when operating at light loads, allowing an unloaded current consumption of only 7 µA (typical) and high light load efficiency. Seamless transition between PWM and PFM modes, along with very low MOSFET ON resistances and an external bias input, ensures exceptional efficiency across the entire load range.

The LMQ61460-Q1 is a high-performance, DC-DC synchronous buck converter with integrated bypass capacitors. With integrated high-side and low-side MOSFETs, up to 6 A of output current is delivered over a wide input range of 3.0 V to 36 V; 42-V tolerance supports load dump for durations of 400 ms. The device implements soft recovery from dropout eliminating overshoot on the output.

The device is specifically designed for minimal EMI. The device incorporates pseudo-random spread spectrum, integrated bypass capacitors, adjustable SW node rise time, low-EMI VQFN-HR package featuring low switch node ringing, and optimized pinout for ease of use. The switching frequency can be synchronized between 200 kHz and 2.2 MHz to avoid noise sensitive frequency bands. In addition the frequency can be selected for improved efficiency at low operating frequency or smaller solution size at high operating frequency.

Auto-mode enables frequency foldback when operating at light loads, allowing an unloaded current consumption of only 7 µA (typical) and high light load efficiency. Seamless transition between PWM and PFM modes, along with very low MOSFET ON resistances and an external bias input, ensures exceptional efficiency across the entire load range.
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Technische Dokumentation

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Typ Titel Datum
* Data sheet LMQ61460-Q1 Automotive 3-V to 36-V, 6 A, Low EMI Synchronous Step-Down Converter datasheet (Rev. C) PDF | HTML 18 Jan 2021
Application note How to Implement a Simple Constant Current Regulation Scheme to a PCM Based Buck PDF | HTML 16 Aug 2023
White paper Abwägung der Vor- und Nachteile und Beschreibung der Technologien zur Verbesseru (Rev. C) PDF | HTML 14 Apr 2023
Technical article How buck regulators with integrated capacitors help lower EMI and save board space PDF | HTML 16 Mär 2022
More literature Advanced Power-Converter Features for Reducing EMI PDF | HTML 07 Dez 2021
User guide LMQ61460EVM-400K User's Guide (Rev. B) PDF | HTML 04 Jan 2021
Functional safety information LMQ6x4x0-Q1 Functional Safety, FIT Rate, FMD, and Pin FMA (Rev. A) PDF | HTML 09 Sep 2020
Technical article How device-level features and package options can help minimize EMI in automotive PDF | HTML 21 Aug 2020
Functional safety information Streamlining Functional Safety Certification in Automotive and Industrial 09 Jun 2020
Functional safety information LMQ61460-Q1 Functional Safety, FIT Rate, and Failure Mode Distribution 01 Apr 2020

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Evaluierungsplatine

LMQ61460EVM — Evaluierungsmodul für 36-V-, 6A, 5-V-Synchron-Abwärtswandler mit niedrigem EMI-Wert, 400 kHz

The LMQ61460EVM evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LMQ61460-Q1 synchronous step-down converter.  The LMQ61460-Q1 provides exceptional efficiency, low Iq, and low EMI in small solution size with integrated capacitors.
Benutzerhandbuch: PDF | HTML
Nicht verfügbar auf TI.com
Simulationsmodell

LMQ61460AAS-Q1 PSpice Transient Model

SNVMC21.ZIP (112 KB) - PSpice Model
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Simulationsmodell

LMQ61460AFS-Q1 PSpice Transient Model

SNVMC23.ZIP (131 KB) - PSpice Model
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Designtool

SNVR488 — LMQ61460EVM-400K Design Files

Unterstützte Produkte und Hardware

Unterstützte Produkte und Hardware

Produkte
AC/DC- und DC/DC-Wandler (integrierter FET)
LMQ61460 — 3-V bis 36-V, 6-A, rauscharmer Synchron-Abwärtswandler für industrielle Anwendungen LMQ61460-Q1 — Synchroner, leiser Abwärtswandler mit integrierter Bypass-Kondensatoren für Automobilanwendungen, 3
Hardware-Entwicklung
Evaluierungsplatine
LMQ61460EVM — Evaluierungsmodul für 36-V-, 6A, 5-V-Synchron-Abwärtswandler mit niedrigem EMI-Wert, 400 kHz
Herunterladen
Designtool

SNVR493 — LMQ61460 Design Tool

Unterstützte Produkte und Hardware

Unterstützte Produkte und Hardware

Produkte
AC/DC- und DC/DC-Wandler (integrierter FET)
LMQ61460 — 3-V bis 36-V, 6-A, rauscharmer Synchron-Abwärtswandler für industrielle Anwendungen LMQ61460-Q1 — Synchroner, leiser Abwärtswandler mit integrierter Bypass-Kondensatoren für Automobilanwendungen, 3
Herunterladen
Gehäuse Pins Herunterladen
VQFN-HR (RJR) 14 Optionen anzeigen
Es gelten die allgemeinen Geschäftsbedingungen von TI für Evaluierungsartikel.

Bestellen & Qualität

Beinhaltete Information:
  • RoHS
  • REACH
  • Bausteinkennzeichnung
  • Blei-Finish/Ball-Material
  • MSL-Rating / Spitzenrückfluss
  • MTBF-/FIT-Schätzungen
  • Materialinhalt
  • Qualifikationszusammenfassung
  • Kontinuierliches Zuverlässigkeitsmonitoring
Beinhaltete Information:
  • Werksstandort
  • Montagestandort

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